code: def test_fill_from_lock_deps_outs(dvc, lock_data):
      stage = create_stage(
          PipelineStage, dvc, PROJECT_FILE, deps=["foo"], outs=["bar"]
      )
  
      for item in chain(stage.deps, stage.outs):
          assert not item.hash_info
  
      StageLoader.fill_from_lock(stage, lock_data)
  
      assert stage.deps[0].hash_info == HashInfo("md5", "foo_checksum")
      assert stage.outs[0].hash_info == HashInfo("md5", "bar_checksum")
  
imports: import os
  from copy import deepcopy
  from itertools import chain
  import pytest
  from dvc.dvcfile import PROJECT_FILE, load_file
  from dvc.stage import PipelineStage, create_stage
  from dvc.stage.loader import StageLoader
  from dvc.stage.serialize import split_params_deps
  from dvc_data.hashfile.hash_info import HashInfo
label_desc: Use image node_id 3 for calling a global function with example usage: test_fill_from_lock_deps_outs(dvc, lock_data) without return types